MAX706PCSA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Monitors the power supply voltage and generates a reset signal when the voltage falls below a predetermined threshold.
  • Provides a reliable reset for microprocessors, microcontrollers, and other digital systems.
  • Offers low power consumption and high accuracy.
• Package: Plastic Small Outline (SOIC), 8-pin
• Essence: Voltage monitoring and reset functionality in a compact IC package
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 4.63V, 4.38V, 4.00V, 3.08V, 2.93V, 2.63V, 2.32V, 2.06V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)
• Reset Timeout Period: 140ms (typical)

Pin Configuration

The MAX706PCSA+T has the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (RST) --| TH OUT |-- Pin 3: Threshold Input (TH) --| -- -- |-- Pin 4: Not Connected (NC) --| -- -- |-- Pin 5: Not Connected (NC) --| -- -- |-- Pin 6: Not Connected (NC) --| -- -- |-- Pin 7: Not Connected (NC) --| -- -- |-- Pin 8: Supply Voltage (VCC) |___________| ```

Functional Features

• Monitors the power supply voltage continuously.
• Generates a reset signal when the voltage falls below the threshold set by the TH pin.
• Provides a debounced reset output to ensure reliable system reset.
• Offers an adjustable threshold voltage to suit different applications.
• Low quiescent current consumption for power-sensitive designs.

Advantages and Disadvantages

Advantages: - Compact package size allows for space-efficient designs. - Wide supply voltage range enables compatibility with various systems. - Adjustable threshold voltage provides flexibility in different voltage monitoring scenarios. - Low power consumption helps prolong battery life in portable devices.

Disadvantages: - Limited number of threshold voltage options may not cover all possible voltage monitoring requirements. - Lack of additional features, such as hysteresis, may limit its suitability for certain applications.

Working Principles

The MAX706PCSA+T operates by comparing the power supply voltage with the threshold voltage set by the TH pin. When the supply voltage drops below the threshold, the internal circuitry generates a reset signal on the RST pin. This reset signal remains active until the supply voltage rises above the threshold again, ensuring a reliable reset for the connected digital system.

Application Field Plans

The MAX706PCSA+T finds applications in various fields, including:

1. Microprocessor-based Systems: Provides a reliable reset signal to microprocessors, ensuring proper initialization and system stability.
2. Microcontroller-based Systems: Ensures correct operation of microcontroller-based systems by generating a reset signal during power-up or voltage drop events.
3. Industrial Control Systems: Monitors power supply voltage in industrial control systems to prevent erratic behavior or data corruption during voltage fluctuations.
4. Automotive Electronics: Used in automotive electronics to monitor the vehicle's power supply and initiate a reset if necessary, ensuring safe and reliable operation.
5. Battery-Powered Devices: Enables voltage monitoring in battery-powered devices, allowing for graceful shutdown or system reset when the battery voltage drops below a certain level.

Alternative Models

1. MAX705CSA+T: Similar functionality with a slightly different pin configuration.
2. MAX707ESA+T: Offers additional features like adjustable reset timeout period and watchdog timer functionality.
3. MAX809SEUR+T: Provides a push-pull output and adjustable threshold voltage options.
4. MAX811SEUS+T: Includes a manual reset input and adjustable reset timeout period.

These alternative models offer similar voltage monitoring and reset functionality, but with slight variations in features and pin configurations.

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